Added WifiSettings -> WifiSettings2 redirection behind feature flag

Use WifiSettings2 if settings_wifitracker2 feature flag is enabled.
WifiSettings2 will be used for changes to WifiSettings to incorporate
the WifiTracker2 refactor.

Bug: 70983952
Test: make, set feature flag, open Wifi settings to verify new page
opens.

Change-Id: I08edc227bf38ab4b3b785180bf123815bf95da81

src/com/android/settings/wifi/WifiSettings2.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.wifi;
+
+import static android.os.UserManager.DISALLOW_CONFIG_WIFI;
+
+import android.app.settings.SettingsEnums;
+
+import com.android.settings.RestrictedSettingsFragment;
+
+public class WifiSettings2 extends RestrictedSettingsFragment {
+
+    public WifiSettings2() {
+        super(DISALLOW_CONFIG_WIFI);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.WIFI;
+    }
+}